Up till now, full use of this theory has been in building large ocean-going ships.A. done

发布时间：2020-08-16 16:13:33

Up till now, full use of this theory has been      in building large ocean-going ships.
A. done
B. made
C. laid
D. taken

网友回答

A. done
(答案→)B. made
C. laid
D. taken
解析：固定短语make full use of,充分利用。“这一理论被充分的利用来建造巨大的远洋航行轮船。”
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